T8 LED replacement tubes -- with ballast

[the blur]

I'm replacing 500 T8 tubes, with LED tubes. Direct replacement, ballast voltage, ballast stays.

Question is, what happens when the T8 ballast fails in a few years...... which they all do. Do I replace it with another T8 ballast, or do they make specific LED ballast/drivers for these replacement tubes?

 

[TerryBarnhill]

IMO, they made the LED to work with the existing ballast, so just pop in another T8 ballast and go on your way.

 

[Electric-Light]

I'm replacing 500 T8 tubes, with LED tubes. Direct replacement, ballast voltage, ballast stays.

Question is, what happens when the T8 ballast fails in a few years...... which they all do. Do I replace it with another T8 ballast, or do they make specific LED ballast/drivers for these replacement tubes?

not all are led compatible. how old are the ballasts?

 

[majorminotaur]

You need to replace with a similar electronic T8 ballast. It was designed for it and the fixture could be relamped with a fluorescent T8 in the future.

 

[JFletcher]

I was under the impression that some (most?) LED 4' lights worked off of one pin on each end, so the tombstones had to be shunted.

 

[majorminotaur]

I was under the impression that some (most?) LED 4' lights worked off of one pin on each end, so the tombstones had to be shunted.

There are 3 types of LED 'T8' replacement lamps.
-Type that works with an existing T8 electronic ballast.
-Type that needs 120V input, and hence the ballast is cut out and the tombstones are shunted and connected to 120V. These have an internal driver.
-Type that has a remote driver. The ballast is cut out and the driver is put in its place.

of these, you can see that the first is the easiest to do, and the safest as well.

 

[sparky1118]

I'm replacing 500 T8 tubes, with LED tubes. Direct replacement, ballast voltage, ballast stays.

Question is, what happens when the T8 ballast fails in a few years...... which they all do. Do I replace it with another T8 ballast, or do they make specific LED ballast/drivers for these replacement tubes?

They make a replacement LED T8 that doesn't require a ballast. It runs off 120 volts straight. I've used alot of those. Why not use those so you don't have to worry about the ballast again?

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[Knick]

They make a replacement LED T8 that doesn't require a ballast. It runs off 120 volts straight. I've used alot of those. Why not use those so you don't have to worry about the ballast again?

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What did you do when you had a fixture that was set up for Emergency lighting?

 

[sparky1118]

What did you do when you had a fixture that was set up for Emergency lighting?

What would it matter if it had a ballast or not?

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[Electric-Light]

What did you do when you had a fixture that was set up for Emergency lighting?

Some emergency ballasts are designed with LED drop-in compatibility. In other cases, they're basically a line voltage UPS with auxiliary contacts to dim down dimming ballasts while on battery power.

 

[Knick]

T8 Direct wire tubes

T8 Direct wire tubes

What would it matter if it had a ballast or not?

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If you use a Direct wire LED tubes then the E light wont work, the battery powers the ballast and if your not using one you lose the ability to have a E-light.

 

[sparky1118]

The T8 LED tubes I use can be used with or without ballast I love them


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